❗URGENT❗I'll give 15 points

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Fill in the combination notes for the main idea shown